Abstract: A compute server receives a request that triggers execution of a code piece out of multiple code pieces. A single process at the compute server executes the code piece, which is run in an isolated execution environment. Each other code piece runs in other isolated execution environments respectively and executed by the single process. The code piece, when executed, modifies a response to the request. The response is generated based at least in part on the executed code piece. The generated response is transmitted.

Abstract: Various embodiments of detectable passive markings are disclosed for application to a roadway pavement surface. Also disclosed are a system and method, using the markings, for warning cross-traffic on a roadway not having the right of way at an intersection of approaching traffic on a roadway that has the right-of-way at the intersection.

Abstract: An on-site roadway warning system for alerting a driver of an approaching vehicle of a need to brake the vehicle. A transceiver radiates electromagnetic energy toward the approaching vehicle and receives reflected energy from the vehicle. A processor processes data about the reflected energy in relation to data about the radiated energy to yield data disclosing both range of the approaching vehicle from the transceiver and rate at which the vehicle is approaching the transceiver. The processor processes the data disclosing range of the approaching vehicle from the transceiver and rate at which the vehicle is approaching the transceiver in relation to the stored data, and activates a signaling device to signal the approaching vehicle when the data disclosing range of the approaching vehicle from the transceiver and rate at which the vehicle is approaching the transceiver correlates with stored data that identifies a potentially dangerous combination of range and rate.

Abstract: A system and process for detecting a traffic lane boundary before it is potentially violated by a moving vehicle traveling in the lane. Passive RF tags or labels are embedded in a paint stripe running along pavement. A sensor in the vehicle emits an RF signal at a frequency to which the tags or labels are responsive. When the emitted signal is incident on a tag or label with strength indicative of straying of the vehicle from the lane toward incipient violation of the lane boundary defined by the stripe, the tag or label issues a return signal that is received by the sensor for on-board signaling of the potential violation to alter the driver so that corrective action can be taken.

Abstract: A system and process for detecting a traffic lane boundary before it is potentially violated by a moving vehicle traveling in the lane. Passive RF tags or labels are embedded in a paint stripe running along pavement. A sensor in the vehicle emits an RF signal at a frequency to which the tags or labels are responsive. When the emitted signal is incident on a tag or label with strength indicative of straying of the vehicle from the lane toward incipient violation of the lane boundary defined by the stripe, the tag or label issues a return signal that is received by the sensor for on-board signaling of the potential violation to alter the driver so that corrective action can be taken.

Abstract: An on-site roadway warning system for alerting a driver of an approaching vehicle of a need to brake the vehicle. A transceiver radiates electromagnetic energy toward the approaching vehicle and receives reflected energy from the vehicle. A processor processes data about the reflected energy in relation to data about the radiated energy to yield data disclosing both range of the approaching vehicle from the transceiver and rate at which the vehicle is approaching the transceiver. The processor processes the data disclosing range of the approaching vehicle from the transceiver and rate at which the vehicle is approaching the transceiver in relation to the stored data, and activates a signaling device to signal the approaching vehicle when the data disclosing range of the approaching vehicle from the transceiver and rate at which the vehicle is approaching the transceiver correlates with stored data that identifies a potentially dangerous combination of range and rate.